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首页> 外文期刊>The International journal of oral & maxillofacial implants >Comparison of three-implant-supported fixed dentures and two-implant-retained overdentures in the edentulous mandible: a pilot study of treatment efficacy and patient satisfaction.
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Comparison of three-implant-supported fixed dentures and two-implant-retained overdentures in the edentulous mandible: a pilot study of treatment efficacy and patient satisfaction.

机译：无牙颌中三种种植体支持的固定义齿和两种种植体保留的覆盖义齿的比较：治疗效果和患者满意度的初步研究。

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Purpose: The mandibular two-implant overdenture has been shown to be a highly successful treatment. However, overdenture patients who desire a fixed prosthesis may not be satisfied with a removable overdenture. This prospective study sought to compare prosthetic outcomes, patient satisfaction, and survival rates of implants between two-implant-supported overdentures (IODs) and three-implant-supported fixed dentures (ISFDs). Materials and Methods: Twenty completely edentulous patients were randomly and equally assigned to two groups. New conventional complete dentures were made, and the mandibular denture was used as a surgical guide during implant placement. Implants were placed in one stage, followed by a mandibular denture soft reline (provisional loading). Ball attachments were inserted at 8 weeks, and ISFDs were delivered at 16 weeks. IODs were connected to the attachments at 8 weeks, using each patients's existing denture. The definitive ISFDs were fabricated using computer-aided design/computer-assisted manufacture milled titanium frameworks and acrylic resin base and teeth. Patient satisfaction and panoramic radiographs were investigated at 6 and 12 months. Results: Both treatments had significant and positive effects on patient satisfaction and quality of life. None of the 50 implants placed had failed at 12 months of follow-up; therefore, the implant survival rate was 100%. Prosthetic complications were generally rare and easily manageable. Conclusions: Both the treatment modalities-the ISFD supported by three implants and the IOD supported by two implants-significantly and similarly improved patient satisfaction and oral health-related quality of life, and prosthetic complications were relatively rare for both treatments. Three implants can be used to support a mandibular fixed prosthesis; however, a longer observation period is needed to validate this treatment modality. Int J Oral Maxillofac Implants 2011;26:415-426.
机译：目的：下颌两种植体覆盖义齿已被证明是一种非常成功的治疗方法。但是，需要固定假体的义齿患者可能对可摘义齿不满意。这项前瞻性研究旨在比较两种种植体支持的覆盖义齿（IOD）与三种种植体支持的固定义齿（ISFD）之间的假体结果，患者满意度和种植体存活率。材料和方法：将二十例完全无牙的患者随机分为两组。制作了新的常规全口义齿，并在植入物植入过程中将下颌义齿用作手术指导。将植入物放置在一个阶段，然后进行下颌义齿软衬（临时加载）。在8周时插入球附件，并在16周时交付ISFD。使用每个患者的现有义齿，在8周时将IOD连接到附件。最终的ISFD使用计算机辅助设计/计算机辅助制造的铣削钛框架以及丙烯酸树脂基体和齿制成。在6和12个月时对患者满意度和全景X射线照片进行了调查。结果：两种疗法均对患者满意度和生活质量产生显着积极影响。在随访的12个月中，放置的50种植入物中没有一个失败。因此，植入物的存活率为100％。修复并发症通常很少见，而且易于处理。结论：这两种治疗方式-由三个植入物支持的ISFD和由两个植入物支持的IOD-均显着且类似地改善了患者满意度和与口腔健康相关的生活质量，并且假体并发症在两种治疗方法中均相对较少。可以使用三个植入物来支撑下颌固定假体。但是，需要更长的观察期来验证这种治疗方式。 Int J口腔Maxillofac植入物2011; 26：415-426。

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